package com.gjr.vod.service.impl;

import com.aliyun.vod.upload.impl.UploadVideoImpl;
import com.aliyun.vod.upload.req.UploadStreamRequest;
import com.aliyun.vod.upload.resp.UploadStreamResponse;
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.vod.model.v20170321.DeleteVideoRequest;
import com.gjr.commonutils.Result;
import com.gjr.servicebase.exceptionhandler.GuliException;
import com.gjr.vod.service.VodService;
import com.gjr.vod.utils.ConstantVodUtils;
import com.gjr.vod.utils.InitVodClient;
import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * @author 呙境仁
 * @create 2022-11-23 9:57
 */

@Service
public class VodServiceImpl implements VodService {

    /**
     * 上传视频到阿里云
     *
     * @param file 文件
     * @return 视频ID
     */
    @Override
    public String uploadAlyVideo(MultipartFile file) {
        /** UploadStreamRequest
         * 参数3 title：上传之后显示名称
         * 参数4 fileName：文件原始名称
         * 参数5 inputStream：上传文件输入流
         */
        try {
            // 文件名称包含文件后缀
            String fileName = file.getOriginalFilename();

            String suffix = fileName.substring(fileName.lastIndexOf("."));
            if (".MOV".equals(suffix)) {
                throw new GuliException(20001, "暂不支持MOV类型的视频文件上传！");
            }

            String title = fileName.substring(0, fileName.lastIndexOf("."));
            InputStream inputStream = file.getInputStream();

            UploadStreamRequest request = new UploadStreamRequest(ConstantVodUtils.ACCESS_KEY_ID, ConstantVodUtils.ACCESS_KEY_SECRET, title, fileName, inputStream);

            UploadVideoImpl uploader = new UploadVideoImpl();
            UploadStreamResponse response = uploader.uploadStream(request);

            String videoId = null;
            if (response.isSuccess()) {
                videoId = response.getVideoId();
            } else { //如果设置回调URL无效，不影响视频上传，可以返回VideoId同时会返回错误码。其他情况上传失败时，VideoId为空，此时需要根据返回错误码分析具体错误原因
                videoId = response.getVideoId();
            }

            return videoId;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 删除多个阿里云视频的方法
     *
     * @param videoIdList 视频id集合
     */
    @Override
    public void removeMoreAlyVideo(List<String> videoIdList) {
        try {
            // 初始化对象
            DefaultAcsClient client = InitVodClient.initVodClient(ConstantVodUtils.ACCESS_KEY_ID, ConstantVodUtils.ACCESS_KEY_SECRET);
            // 创建删除视频request对象
            DeleteVideoRequest request = new DeleteVideoRequest();
            // 向request设置视频id
            String videoIds = StringUtils.join(videoIdList, ",");
            request.setVideoIds(videoIds);
            // 调用初始化对象的方法实现删除
            client.getAcsResponse(request);

        } catch (Exception e) {
            e.printStackTrace();
            throw new GuliException(20001, "删除视频失败");
        }
    }
}
